Registered new as N125AK in Dec 1979. To N571CH also in Dec 1979 operated by Chemed Corp. To N455BK on 03 Oct 2001. To Mexico as XB-SFN in Jan 2023. Crash landed in Mexico and W/O on 26 Jan 2023 on a drug-run. In the background is Boeing 720-022 N7201U which was scrapped at Luton in Jul 1982.